<template>
	<div class="app-container">
		<!-- 顶部 Header 区域 -->
		<mt-header fixed title="Vue项目demo">
			<span slot="left" @click="goBack" v-show="flag">
				<mt-button icon="back">返回</mt-button>
			</span>
		</mt-header>

		<!-- 中间的路由 router-view  区域 -->
		<transition>
			<router-view></router-view>
		</transition>

		<!-- 底部  Tabbar 区域 -->
		<nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item-1" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item-1" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item-1" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart">
					<span class="mui-badge" id="badge">{{
						$store.getters.getAllCount
					}}</span>
				</span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item-1" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
	</div>
</template>

<script>
export default {
	data () {
		return {
			flag: false
		}
	},
	created () {
		this.flag = this.$route.path === '/home' ? false : true
	},
	methods: {
		goBack () {
			// 点击后退一页
			this.$router.go(-1)
		}
	},
	watch: {
		'$route.path': function (newVal) {
			if (newVal === '/home') {
				this.flag = false
			} else {
				this.flag = true
			}
		}
	}
}
</script>

<style lang="scss" scoped>
.mint-header {
	z-index: 99;
}
.app-container {
	padding-top: 40px;
	padding-bottom: 50px;
	/* 横向X轴超过一定宽度隐藏超过 */
	overflow-x: hidden;
}

.v-enter {
	opacity: 0;
	transform: translateX(100%);
}
.v-leave-to {
	opacity: 0;
	transform: translateX(-100%);
	position: absolute;
}
.v-enter-active,
.v-leave-actice {
	transition: all 0.5s ease;
}

// 改类名，解决 tabbar 点击无法切换的问题
.mui-bar-tab .mui-tab-item-1.mui-active {
	color: #007aff;
}

.mui-bar-tab .mui-tab-item-1 {
	display: table-cell;
	overflow: hidden;
	width: 1%;
	height: 50px;
	text-align: center;
	vertical-align: middle;
	white-space: nowrap;
	text-overflow: ellipsis;
	color: #929292;
}

.mui-bar-tab .mui-tab-item-1 .mui-icon {
	top: 3px;
	width: 24px;
	height: 24px;
	padding-top: 0;
	padding-bottom: 0;
}

.mui-bar-tab .mui-tab-item-1 .mui-icon ~ .mui-tab-label {
	font-size: 11px;
	display: block;
	overflow: hidden;
	text-overflow: ellipsis;
}
</style>
